Upgrade 3990DEVICE, Subset 3990VM/XA:
THIS SUBSET CONTAINS INSTALLATION INFORMATION FOR DEVICE 3990,
STORAGE CONTROL, SUPPORT FOR VM/XA.
This SUBSET contains DEVICE SPECIFIC PSP information for this device
type and includes all models and features currently available for use
with this host operating system. For those models and/or features that
have been announced but are not yet available, It may also contain
preliminary planning information that will be finalized and updated as
necessary by the general availability date. It is advisable to also
peruse any PSP information available for the host operating system that
may be available and/or applicable.

THIS SECTION CONTAINS INFORMATION THAT IS HARDWARE SERVICE
LEVEL RELATED.
3. 89/05/01 ITEM DELETED 90/08/02
2. 89/03/23 THE FOLLOWING INFORMATION PERTAINS TO THE 3990-3:
A. IDCAMS LISTDATA COUNTS WILL INDICATE THAT THE CACHE
COUNTERS ARE NOT INCREMENTING FOR VOLUMES THAT HAVE
CACHE SET OFF BY THE SETCACHE COMMAND.
THIS FAILURE IS DUE TO 3990-3 MICROCODE AND WILL BE
CORRECTED WITH THE RELEASE SUPPORTING CACHE FAST WRITE -
SCHEDULED 1H 1989.
THE CACHE RMF REPORTER (CRR) WILL BE SIMILARLY AFFECTED
SINCE THE CRR CALLS LISTDATA FOR THE SAME PURPOSE.
THE EFFECT ON THE CRR IS TWOFOLD:
(1) THERE WILL BE NO READ TO WRITE RATIOS OR I/O RATES
FOR VOLUMES THAT HAVE CACHE SET OFF.
(2) THE TOTAL I/O RATE FOR THE 3990 SUBSYSTEM WILL BE
UNDERSTATED BY THE NUMBER OF I/O'S ISSUED TO
VOLUMES THAT HAVE CACHE SET OFF.
B. THE CLEARFENCE CONTROL COMMAND UNDER ICKDSF WILL ONLY
CLEAR A FENCED DEVICE. CHANNEL OR STORAGE PATH FENCES
WILL NOT CLEAR. A 'START REPAIR' CE ACTION FOR THE
ERROR THAT CAUSED THE CHANNEL OR STORAGE PATH TO BE
FENCED, WILL CLEAR THAT FENCE. THE STORAGE PATH RESTART
SWITCH WILL ALSO RESET THE FENCES. READ AND OBSERVE THE
DIRECTIONS IN THE PLANNING, INSTALLATION AND STORAGE
ADMINISTRATION (PISA) GUIDE BEFORE OPERATING THE SWITCH.
C. NON-DISRUPTIVE DEINSTALL OF DASD DEVICES IS NOT YET
SUPPORTED.
1. 88/12/01 WHEN ATTACHING D/T3990 TO A CHANNEL ON D/T4381 PROCESSOR,
HAVE THE SERVICE REPRESENTATIVE CHECK THAT THE MICROCODE
PATCHES SUPPORTING D/T3990 ATTACHMENT HAVE BEEN INSTALLED.

THIS SECTION CONTAINS THE MINIMUM REQUIRED SOFTWARE PRODUCT
LEVELS REQUIRED TO SUPPORT THIS DEVICE.
2. 91/12/23 THE PARALLEL INTERFACES THAT MAY BE PRESENT ON A 3990 ESCON
MICROCODE PLATFORM MACHINE MAY BE ACCESSED BY ANY SUPPORTED
HOST OPERATING SYSTEM AT ANY SUPPORTED LEVEL OF THAT HOST
CODE FOR THAT GIVEN OPERATING SYSTEM. THIS IS TRUE ONLY FOR
PARALLEL INTERFACES AND USERS MUST STILL ABIDE BY THE
RESTRICTION THAT ANY PROCESSOR IMAGE MUST BE EITHER ALL
PARALLEL INTERFACES OR ALL ESCON PORTS AND MAY NOT BE A
MIXTURE. NO ADDITIONAL TOLERATION SUPPORT IS REQUIRED AT
THIS TIME. ESA SOFTWARE IS THE ONLY SUPPORTED HOST
OPERATING SYSTEM THAT ALLOWS ESCON CONNECTIVITY.
1. 88/09/06 MINIMUM SOFTWARE SUPPORT LEVEL FOR D/T3990 WITH
D/T3380 MODELS INSTALLED:
EREP 3.3.2 + UV34383 (8805), UV32646 (8802)
ICKDSF 1.9.0
VM/XA SP 1.1.0 (R110)
VM/XA SF R2 (R140) + THE FOLLOWING PTFS:
UM90015 AT 8708
UM90017 AT 8708
UM90016 AT 8708
UM90019 AT 8801

THIS SECTION CONTAINS PRODUCT AND SERVICE LEVELS THAT ARE NEEDED
TO SUPPORT PRODUCTS THAT PROVIDE OPTIONAL SUPPORT FOR THIS DEVICE.
2. 89/03/22 DIRM REL 3
1. 88/08/24 VM/IPF 2.2.0 + UL90079 (8708)
VM/RACF 1.7.0